HorsePix
Recruit
- Joined
- Aug 8, 2016
- Messages
- 5
I purchased a Solas Amita 3 (11-3/8x12) for my Yamaha F60. It turns 6300 RPM @ WOT. I want to buy a Amita 4 blade for running the shallows. I know that if I were to increase the pitch by one on the Amita 3 my RPMs would drop 200. Will I experience the same proportional shift in RPMs with the Amita 4? I need to get the RPMs down to 6000 or less. Going from a three blade to a four blade should drop my RPMs 200. Should I increase the pitch from 12 to 13 and end up with 5900 @ WOT?